RAMAN-SPECTRA OF (BI,PB)2SR2CACU2O8+Y SINGLE-CRYSTALS AND THE ROLE OF LEAD SUBSTITUTION

被引：23

作者：

SAPRIEL, J

SCHNECK, J

SCOTT, JF

TOLEDANO, JC

PIERRE, L

CHAVIGNON, J

DAGUET, C

CHAMINADE, JP

BOYER, H

机构：

[1] CNRS,CHIM SOLIDE LAB,F-33405 TALENCE,FRANCE

[2] INSTRUMENT SA,JOBIN & YVON DIV,LONGJUMEAU,FRANCE

[3] UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.43.6259

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the Raman spectra of chemically characterized (Bi(2-x)Pb(x))Sr2CaCu2O8+y single crystals for 0 < x < 0.4. Significant modifications of the spectra, becoming more pronounced with increasing x, are noted with respect to the lead-free crystals in the ranges of the 117-cm-1, (460-530)-cm-1, and (630-650)-cm-1 lines. The interpretation of these modifications provides an important confirmation of recent speculations concerning the lattice dynamics of this family of superconductors and the role of lead in modifying their structure and their microstructure.

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页码：6259 / 6262

页数：4

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